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Titolo:
TONOTOPIC ORGANIZATION OF HUMAN AUDITORY ASSOCIATION CORTEX
Autore:
CANSINO S; WILLIAMSON SJ; KARRON D;
Indirizzi:
NATL AUTONOMOUS UNIV MEXICO,FAC PSYCHOL,CP 03421,APARTADO POSTAL 25-308 MEXICO CITY 04510 DF MEXICO NYU,DEPT PHYS,NEUROMAGNETISM LAB NEW YORK NY 10003 NYU,DEPT PSYCHOL NEW YORK NY 10003 NYU,CTR NEURAL SCI NEW YORK NY 10003 NYU,MED CTR,DEPT SURG NEW YORK NY 10003
Titolo Testata:
Brain research
fascicolo: 1, volume: 663, anno: 1994,
pagine: 38 - 50
SICI:
0006-8993(1994)663:1<38:TOOHAA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERIOR TEMPORAL SULCUS; EVOKED MAGNETIC-FIELDS; HUMAN-BRAIN; TRANSIENT; RESPONSES; MACAQUE; MONKEY; MEMORY; AREAS;
Keywords:
AUDITORY CORTEX; TONOTOPIC; EVENT RELATED FIELD (ERF); NEUROMAGNETISM; MAGNETIC SOURCE IMAGING (MSI); INTERSTIMULUS INTERVAL (ISI);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
S. Cansino et al., "TONOTOPIC ORGANIZATION OF HUMAN AUDITORY ASSOCIATION CORTEX", Brain research, 663(1), 1994, pp. 38-50

Abstract

Neuromagnetic studies of responses in human auditory association cortex for tone burst stimuli provide evidence for a tonotopic organization. The magnetic source image for the 100 ms component evoked by the onset of a tone is qualitatively similar to that of primary cortex, withresponses lying deeper beneath the scalp for progressively higher tone frequencies. However, the tonotopic sequence of association cortex in three subjects is found largely within the superior temporal sulcus,although in the right hemisphere of one subject some sources may be closer to the inferior temporal sulcus. The locus of responses for individual subjects suggests a progression across the cortical surface that is approximately proportional to the logarithm of the tone frequency, as observed previously for primary cortex, with the span of 10 mm for each decade in frequency being comparable for the two areas.

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Documento generato il 22/01/20 alle ore 06:24:54